Measurement of the Bs 0→J/ψη lifetime

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Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G et al (show 90 more authors) , Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, d'Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Batsukh, B, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Bel, LJ, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bertolin, A, Betti, F, Bettler, MO, van Beuzekom, M, Bifani, S, Billoir, P, Bird, T, Birnkraut, A, Bitadze, A, Bizzeti, A, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bonivento, W, Borgheresi, A, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV ORCID: 0000-0002-3505-6915, Bowen, E, Bozzi, C, Braun, S, Britsch, M, Britton, T, Brodzicka, J, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Calvo Gomez, M and Campana, P (2016) Measurement of the Bs 0→J/ψη lifetime. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 762. pp. 484-492. ISSN 0370-2693

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Abstract

Using a data set corresponding to an integrated luminosity of 3 fb⁻¹, collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV, the effective lifetime in the B<inf>s</inf> ⁰→J/ψη decay mode, τ<inf>eff</inf>, is measured to beτ<inf>eff</inf>=1.479±0.034 (stat)±0.011 (syst) ps. Assuming CP conservation, τ<inf>eff</inf> corresponds to the lifetime of the light B<inf>s</inf> ⁰ mass eigenstate. This is the first measurement of the effective lifetime in this decay mode.

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	01 Dec 2016 11:33
Last Modified:	04 Jun 2025 19:51
DOI:	10.1016/j.physletb.2016.10.006
Open Access URL:	https://arxiv.org/abs/1607.06314v1
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3004715